package com.atguigu.tingshu.album.api;

import com.atguigu.tingshu.album.config.MinioConstantProperties;
import com.atguigu.tingshu.common.result.Result;
import io.minio.BucketExistsArgs;
import io.minio.MakeBucketArgs;
import io.minio.MinioClient;
import io.minio.PutObjectArgs;
import io.minio.errors.MinioException;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.UUID;

@Tag(name = "上传管理接口")
@RestController
@RequestMapping("api/album")
public class  FileUploadApiController {

    @Autowired
    private MinioConstantProperties minioConstantProperties;

    @Operation(summary = "上传文件")
    @PostMapping("/fileUpload")
    public Result fileUpload(MultipartFile file) {
        //使用minio上传文件
        String url = "";
        try {
            //初始化Minio客户端
            MinioClient minioClient = MinioClient.builder()
                    .endpoint(minioConstantProperties.getEndpointUrl())
                    .credentials(minioConstantProperties.getAccessKey(), minioConstantProperties.getSecreKey())
                    .build();
            //检查存储桶是否存在，不存在则创建
            boolean found =
                    minioClient.bucketExists(BucketExistsArgs.builder().bucket(minioConstantProperties.getBucketName()).build());
            if (!found) {
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(minioConstantProperties.getBucketName()).build());
            }else {
                System.out.println("Bucket already exists");
            }
            //文件名处理，生成唯一的文件名
            String originalFilename = file.getOriginalFilename();
            String suffix = originalFilename.substring(originalFilename.lastIndexOf("."));
            String fileName = UUID.randomUUID().toString().replace("-", "") + suffix;

            //将文件上传到Minio服务器
            minioClient.putObject(PutObjectArgs.builder().bucket(minioConstantProperties.getBucketName()).object(fileName).stream(file.getInputStream(),file.getSize(),-1)
                    .contentType(file.getContentType()).build());
            //构建文件的访问url
            url = minioConstantProperties.getEndpointUrl() + "/" + minioConstantProperties.getBucketName() + "/" + fileName;
            System.out.println("url:\t"+url);
        }catch (MinioException e ) {
            System.out.println("Error occurred: " + e);
            System.out.println("HTTP trace: " + e.getMessage());
        }catch (IOException e){
            throw new RuntimeException(e);
        }catch (NoSuchAlgorithmException e){
            throw new RuntimeException(e);
        }catch (InvalidKeyException e){
            throw new RuntimeException(e);
        }

        return Result.ok(url);
    }

}
